{"id":2572,"date":"2020-06-02T19:50:03","date_gmt":"2020-06-02T18:50:03","guid":{"rendered":"https:\/\/mrsphysics.co.uk\/n5\/?p=2572"},"modified":"2025-11-25T07:37:53","modified_gmt":"2025-11-25T07:37:53","slug":"indium-116-half-life-experiment","status":"publish","type":"post","link":"https:\/\/mrsphysics.co.uk\/index.php\/2020\/06\/02\/indium-116-half-life-experiment\/","title":{"rendered":"Indium-116 half life experiment"},"content":{"rendered":"\n

I hope that I am not breaking any rules, but these great resources no longer appear to be online. Can’t believe they are 20 years old!<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

The first photos show the background count rate, a reading of counts taken over a 1 minute period. The source is then taken out at 9:00 am and a count taken between 9:00 and 9:01, readings are then taken every 15 mins<\/em>.<\/p>\n\n\n\n

\n\n\n\n\t\n\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t
Paper<\/th>Year<\/th>MI<\/th>\n<\/tr>\n<\/thead>\n
Higher 2000<\/a><\/td>2000<\/td><\/td>\n<\/tr>\n
Higher 1999 P2<\/a><\/td>1999<\/td><\/td>\n<\/tr>\n
<\/td>1998<\/td><\/td>\n<\/tr>\n
<\/td>1997<\/td><\/td>\n<\/tr>\n
<\/td>1996<\/td><\/td>\n<\/tr>\n
Higher 1995 P2<\/a><\/td>1995<\/td><\/td>\n<\/tr>\n
Higher 1994 P2<\/a><\/td>1994<\/td><\/td>\n<\/tr>\n
Higher 1993 P2<\/a><\/td>1993<\/td>Higher 1993 (Answers)<\/a><\/td>\n<\/tr>\n
Higher 1992 P2<\/a>
\nHigher 1992 P1<\/a>
\n<\/td>		1992<\/td><\/td>\n<\/tr>\n
Higher 1991 P2<\/a><\/td>1991<\/td><\/td>\n<\/tr>\n
\nhref=\"https:\/\/www.mrsphysics.co.uk\/wp-content\/uploads\/higher\/2019\/01\/Higher-1990.pdf\">Higher 1990 P2<\/a><\/td>1990<\/td><\/td>\n<\/tr>\n
Higher 1989 P2<\/a>
\n
\nHigher 1989 P1<\/a><\/td>		1989<\/td><\/td>\n<\/tr>\n
Higher 1988 P2<\/a>
\n
\nHigher 1988 P1<\/a><\/td>		1988<\/td><\/td>\n<\/tr>\n
Higher 1987 P1<\/a>
\n<\/td>		1987<\/td><\/td>\n<\/tr>\n
Higher 1986 P1<\/a>
\n
\nHigher 1986 P2<\/a><\/td>		1986<\/td><\/td>\n<\/tr>\n
Higher 1985 P2<\/a>
\nHigher 1985 P1<\/a>
\n
\n<\/td>		1985<\/td><\/td>\n<\/tr>\n
Higher 1984 P2<\/a><\/td>1984<\/td><\/td>\n<\/tr>\n

\n
\n<\/td>		1983<\/td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/p>\n\n\n\n
Background count<\/td> <\/td> <\/td> <\/td><\/tr>
Time <\/td>Time from start<\/td>Count rate<\/td>corrected count<\/td><\/tr>
(hours)<\/td>(mins)<\/td>(cpm)<\/td>(cpm)<\/td><\/tr>
09:00<\/td>0<\/td> <\/td> <\/td><\/tr>
09:15<\/td>15<\/td> <\/td> <\/td><\/tr>
09:30<\/td>30<\/td> <\/td> <\/td><\/tr>
09:45<\/td>45<\/td> <\/td> <\/td><\/tr>
10:00<\/td>60<\/td> <\/td> <\/td><\/tr>
10:15<\/td>75<\/td> <\/td> <\/td><\/tr>
10:30<\/td>90<\/td> <\/td> <\/td><\/tr>
10:45<\/td>105<\/td> <\/td> <\/td><\/tr>
11:00<\/td>120<\/td> <\/td> <\/td><\/tr>
11:15<\/td>135<\/td> <\/td> <\/td><\/tr>
11:30<\/td>150<\/td> <\/td> <\/td><\/tr>
11:45<\/td>165<\/td> <\/td> <\/td><\/tr>
12:00<\/td>180<\/td> <\/td> <\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

<\/p>\n\n\n\n

\"\"\/<\/figure><\/div>\n\n\n\n
\"Signature\"
June 2020<\/figcaption><\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"

I hope that I am not breaking any rules, but these great resources no longer appear to be online. Can’t believe they are 20 years old! The first photos show the background count rate, a reading of counts taken over a 1 minute period. The source is then taken out at 9:00 am and a…<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[78],"tags":[333,334,335,336,169,337,338,70,175,192,177,178],"ppma_author":[1267],"class_list":["post-2572","post","type-post","status-publish","format-standard","hentry","category-radiation","tag-half-life","tag-half-life-experiment","tag-images","tag-indium-116","tag-learn-physics","tag-n5-radiation","tag-npa-applied-science","tag-physics","tag-physics-for-schools","tag-school-physics","tag-scottish-school","tag-scottish-school-physics","vs-blog blog-single wow fadeInUp"],"acf":[],"authors":[{"term_id":1267,"user_id":3,"is_guest":0,"slug":"n5","display_name":"Mrs Physics","avatar_url":"https:\/\/mrsphysics.co.uk\/wp-content\/uploads\/2025\/12\/OK-scaled.png","author_category":"","first_name":"Mrs","last_name":"Physics","user_url":"","job_title":"","description":""}],"_links":{"self":[{"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/2572","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/comments?post=2572"}],"version-history":[{"count":1,"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/2572\/revisions"}],"predecessor-version":[{"id":5225,"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/2572\/revisions\/5225"}],"wp:attachment":[{"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/media?parent=2572"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/categories?post=2572"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/tags?post=2572"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/ppma_author?post=2572"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}