Expectation and possible issues for development of a compact neutron source

An overview of the development of the compact neutron source is briefly described. Recent development of a neutron source as well as measurement technique is opening a new era for a small neutron source as a practical probe for materials science. In order to utilize neutron beam as a research probe, there are several ingredients such as handling technique of the neutron beam, the development of time-of-flight measurement technique, and the development of high efficiency neutron detectors, and none of them can lack for a practical instrument. It is also emphasized that the protection from radiation and costs for construction as well as daily operation are two more indispensable factors to be carefully considered. (author)