The most common ones used are basis weight calculated by a _________ It measures the absorption by paper of electrons emitted by a radioisotope.

The most common ones used are basis weight calculated by a _________ I

1.	The most common ones used are basis weight calculated by a _________ It measures the absorption by paper of electrons emitted by a radioisotope.
A.	tJs beta ray detector
B.	tGk gamma ray detector
C.	tLk alfa ray detector
D.	tMs beta ray detector
Answer» B. tGk gamma ray detector